问题 选择题

使用平面镜不能(  )

A.改变光的传播方向

B.使房间看起来更宽敞

C.成等大的虚像

D.使光发生漫反射

答案

A、平面镜能改变光的传播方向,这叫光的反射.此项不符合题意.

B、通过平面镜能成与物体等大的虚像,所以能使房间看起来更宽敞,此项不符合题意.

C、根据平面镜成像的特点,通过平面镜能成等大的虚像,此项不符合题意.

D、漫反射必须是发生在粗糙的表面上,镜面非常光滑,所以在镜面上发生的是镜面反射而不是漫反射,此项符合题意.

故选D.

阅读理解

阅读理解。

Festival activities programme (节日活动)

TIME AND PLACE

October 24-30

at Kerry Centre Hotel

Classroom area

1) English Taster Lesson

2) Food health-keeping method presentation Computer area

3) E-Photography and TechnoMusic

4) Education Software Demonstration

Internet Training area

     SINA and Capital On-Line will provide Internet training for the public.The focus (焦点) will be on browsing

the Internet; how to find useful information on the web and how to design an easy Web page.

Foyer activity area

5) The students from Beijing TV University for the Aged will provide a calligraphy (a kind of writing show)

6) Children activities

Lectures

     21st Century, the educational weekly of China Daily, will invite experts from English- speaking countries to

hold lectures from 18:30 to 20:30 on October 27 to 29 and in the daytime on October 30.

1. A 70-year-old teacher wants to see how to use writing brush well, he should go to _____.

A. Classroom area

B. Computer area

C. Internet Training area

D. Foyer Activity area

2. A person who is interested in internet can go to _____.

A. Computer area at 9.m. Oct. 30       

B. Internet Training area at 11 a. m. Oct. 24

C. Classroom area at 8:00 p. M. Oct. 26     

D. Lectures at 9:00 p. m. Oct. 29

3. The students of English Department (英语系) have a chance to learn English at _____.

A. 9:00-9:45 a.m. Oct. 27       

B. 15:00-15:45 Oct. 30

C. 17:15-18:00 Oct. 28       

D. 12:00-12:45 Oct. 25

4. The word "browsing" in the passage probably means _____.

A. smelling everywhere      

B. going here and there

C. listening everywhere      

D. reading here and there

单项选择题